Oil-pump.



No. 783,392. PATENTED FEB. 21, 190,5.

T. L. L T. J. STURTEVANT.

OIL PUMP.

APPLICATION FILED AUG. 22,1904.

ne; masas'.

' ieee Patented' February 21, 1.9?0215.

A'frnlufr: FFICE.

srUnrEvANr, er WELLESLEY, MASSACHUSETTS. l

era-Pupi.

. srncrmcn'rmn ro pm er reeel-erneut No. 783,392, dated February 21, 1905.

ers, and isespeeially' designed for use in-connection with automobiles,'althougl1` it-willbe understood that the l`oilerwhichI forms the' subject of thepresent cases not restricted toany particular typezof'iuachine, but. may be used Wherever it .isdesirable to have' an eiiicient power-oiling device to force the' lubri- 'I bles the construejtion' therein show cant to the bearingsor other parts'which must be oiled.

4described is in the nature o fan improvenientil on'the poweroiler-or multiple oil-pumfnshown and described in :o 'u'xi .'Eatent15145;7162.103@i dated June-7,:190Land nsome ways resemrA n. forjts ob- The improved oihngdevi Aluis- J een 'te provide, in eeneeeenfraeahe-meai p le power-operated which vdeliver theoil from the supply--toth'e parts be lubricated, an auxiliary -oilfforeing for Amanuallyflooding said multiplepower oil';

- any infrequently 'the case'where no provisionis;

rams and their delivery-tubea'so that in event: ofthemachine standingidlefor'suchalength' oftime as to penitfleakageof the oiljfrom any cfg-the rams and .delivery-passages and a" l'esi'llting dryness tlreeofithese' dry oil-rams and passages may be quikfynd wnvnientlr Hooded with oil and their ctioxisupplemented, so that they will beging@ -delivertli'e lubrif". cant Yto .the'bearin'gs and'other parts as'sooas i the menne is earned; eeawilrneie seminary condltion for 'a few strokes without delivering lubricant'to the parts'tebeoile; aSQSnQ.

made foi preliminary -filoodig for llin'glof the power-pump. Furthermore, l the power-operated rams and .'theauxiliary oilforcing f means are so arranged -relative to: each other 1 The invention-"whichfwill bev hereinafter;

A tppueeeeeaxea negeer a2, 1904.- seriei n. 221,770.

To all whom it carecer-rt! f A Be it known that we, Tuo

n STURTEVANT, residing at Quincy, and 'ElgMAS .loser-H STURTEvAN'r, residing at Wellesley, in the county of Norfolk ande-State of' Massachusetts, citizens of the United States, vhave in- 1 vented certain, new and useful improvements in Oil-Pum ps, of which the following is aspecif ieation, reference being had therein to the accompanying drawings.

The present invention relates to power-oiland so connectedvwith the oil-supply and oil delivery-pipes that 'they may be operated simultaneously, so that one supplementsthe ac-f "livery of the oil'to the parts-to be lubricated, "or they' may be 'operated independently of each other.. z y Another objeetbf the invention is to profi.: vide for an adjustment of the oil-rams, so that" while operated 'from a common actuating-' shaft eiach ram of the series may be adjusted as to its iow so as to increase or decrease the in accordance with-the' needsofl-the particular part of themachine which is fed, for it is` obvious that where one ram is oiling a bearing ot' comparatively small sizeand another "in the amount of oill necessary to, propely lu- A bljcate these two elements is considerable.

In the drawings herewith-we have' illustrated one embodiment of our invention.

In saiddrawin'lgs', Figure 1 is, aview, partially in section, ofthe ,battery of oil rams pumps and; their operating mechanism.= Fig. -2 isav transversejsectional view of thqe poweroiler ,on-line' 2 ZoLFigJ-l looking inthe di rection of thejarrow and showing the relation of th'e povi'rer-'pumpsY andv A erate'zd'flooding#p inilp.' 1 Fig.V 3 is a detail view of the operatinggeam'or disk' for the ram-actuating shaft;` and, Figs. .It and 5; are detail views of. two-ram-cylinders, to illustrate the 1 adjustable features'of the pumpor ram. Referring to the'drawings by numerals, like numbers ,indicating like rparts inthe several Lviews", 112 indicates the pump 'reservoir, inv 'which "is mounted in suitable'A J'rffsliaft 13-for operatingfthe'oil-rams,

' er-shaft being driveninany. suitable manner, this driving means case: being shown as a worinatedA by aworm-shaft 15` drivenf-rom any suitable Vsourcqsofliderar'. I lVIimntzed on said powellfshaft--lisajcarnior mutilated "disk 16, which engsa. tappetfam- -1'1 ron'a pump orram Voperating shaft 18,; which shaft'lS isvmoun'td in suitable b'earings'ina lram-chamber 180 in` the lowergpar't ofgthe p tion of the other and secures a maximum deamountiof oil fed through its delivery-pipe ram is oiling a large cylinder the difference l :the manually-opbearings the' wheel 14', opersaid rain-operating shaft 18 is provided with a fixed sleeve carrying a series of levers 19, which engage at their upper ends the slotted or notched ram-pistonsv20, as clearly shown in Figs. 2, 4, and 5, said ram-pistons being mounted in pump-cylinders 21, carried by the frame or casing 12, and all placed within the said ram-chamber 180. These cylinders 2 are cut away at one side so as to form openings 22 to permit play of the piston-actuating arms 19 and also to admit oil to the cylinders from the main source of oil-supply, which oil-supply delivers, through a passage 23, to the pump-reservoir 12, within which the power pumps or rams and their operative parts are located.

In the upper part of the frame or casing 12 is a cylinder 24, within which is mounted for reciprocation a manually-operated piston 25, the said cylinder 24 being in communication with the main oil-passage 23, so that by op# eratingr the said piston 25' the hand-pump will draw oil from the main supply and forceit through the .passage 26 into the pump chamber or casing 12, flooding the power-rains and delivery-passages and placing them in condition to start the forcingbf oil'to the parts to be oiled as soon as the power-shaft and the power oiling devices are set in operation. A suitable check-valve 27 is provided at the outlet of the main oil-passage 23 to prevent backiow of the oil during operation of the pumps. It will thus be seen that the operator can guard against the objectionabledry ness of the battery of oil-rams and the outlet-passages incident to an idle condition of the machine for any length of time by'simply operating the hand-pump a few ytimes prior to starting his power oil-rams, such hand-pump flooding the power-rams, supplementing their feeding action, and placing them in condition for immediately delivering the proper lubricant to the parts as soon as the machine is started.

1t will be apparent also that while the oilrams are working if it should be desired to supplement their action by operating the manually-controlled oil-forcing means or pump this may be readily done by the operator'and an increased or maximum How of oil to the parts to be lubricated secured.

It will be seen that the auxiliary pump is connected with the supply-pipe 23 at a ,point outside of the point of delivery of said supply pipe or .passage to the ram-chamber 180 and, as shown inthe present construction, between saidjram-chamber V180 and the checkvalve 27, which controls the said supply pipe or passage 23, so that an oil-supply pipe common to both of the pump instrumentalities is provided. Furthermore, it is apparent that when the auxiliary pump is operated it will draw oil throughs. common supply-pipe 23, force it into said ram-chamber 180, iood the ramsgiherein, and deliver .the oil through the 'forward or oil-forcing movement.

ramoutlet passages leading from the ram-cylinders, so that the same delivery-pipes are common to the auxiliary pump and the poweru operated rams. l

The pistons 20 of the oil-rams are preferably ofthe spring-actuated type shown in our patent above referred to in order to provide for quick and uniform oil-forcing movements of the piston regardless of the speed of the piston-retracting shaft 18, the construction in the present instance differing from the patent noted in that each piston 20 is backed by an actuating-spring 28, placed within the ramcylinder 21 behind the piston, so that each ram is complete so far as its oil-forcing powers are concerned, and derangement of the forcing-spring of one ram does not affect any of the others. Each of said cylinders 21 is provided at its forward end with a deliverynipple 29, and adjustably seated at the forward end of said cylinder 21, preferably by a screw-thread connection, is a check-valve casing 30, carrying the usual spring-check valve 31. The said valve-casing 30 is adjustable by means of its screw-threaded connection within the ram-cylinder, and its inner end forms a stop or abutment against which the springactuated piston 20'strikes at the end of its It will be apparent that by adjusting the said stopor abutment the length of stroke of the oilforc ing piston 20 may be varied, asclearly shown in the comparative illustration in Figs. 4.- and 5, so that the volume of oil forced out through 'the delivery-nipples 29 of the respective rams der21 is capped by suitable end caps, as shown,

the forward end cap having a transparent sight-disk, through which the feed of the ram may be observed. v

From the foregoing it will be seen that as the power-shaft 13 is operated through the driving connections 'described the cam or mutilated disk 16 will rock the shaft -18 in its .bearings and through the levers 19 retract the ram-pistons 20, so as to permit the cylinders -21 to fill with oil from the supply, and as soon as the tappet 17 drops from the cam point or disk mutilation in the disk 16 the springsf28 of the oil-rams, which have been compressed during the retraction of the pistons, will give IIO a quick oil-forcing movement Vtothe said pis- 5 tons 20, carrying them forward until 'they strike their respective stops orabutments on the valve-casings 30.

It will be understood that the structure shown and described is merely'illustrative, and as the construction is capable of considerable variation within the range of mechanical skill without departing from our invention we do not wish to be understood as limiting ourselves to anything shown and described except so far as we are limited by the terms of the appended claims.

What we claim isl. In a power-oiler and in combination, a ram chamber, a power-operated oil-forcing ram in said chamber, a su pply-pipe delivering oil to said chamber from a suitable source, a delivery-pipe through which said ram forces oil to the parts to be lubricated, and an independent auxiliary oil-forcing pump connected with said supply-pipe outside its point of delivery to said chamber, whereby operation of said auxiliary pump will draw oil through said supply-pipe, force it into said chamber, iiood said ram, and deliver it through said ram delivery-pipe to the parts to be lubricated.

2. In a power-oiler and in combination, a ram-chamber, a series of power-operated oilforcing rams in said chamber, a supply-pipe delivering oil to said chamber from asuitable source, a series ofdelivery-pipes through which said rams force oil to the parts to/,be lubricated, and an independent auxiliary oilforcing pump connected with said su pply-pi pe outside its point of delivery to said chamber; whereby operation of said auxiliary pump will draw oil through said supply-pipe, force it into said chamber, iiood said rams, and deliver it through said ram delivery-pipes to the parts to be lubricated.

3. 1n a power-oiler and. in combination, a ram-chamber, a series of power-operated oilforcing rams in said chamber, a supply-pipe delivering oil 1.o said chamber,I a check-valve in said pipe, a manually-operated auxiliary pump connected with said supply-pipe between its point of delivery to the ram-chamber and said check-valve, whereby operation of said pump will draw oil through said supply-pipe, force it into said chamber, and flood said rams, and delivery-pipes through which both rams and pump force oil from said chamber to the parts to be lubricated.

4. In a power-oiler, thecombination with a ram-cylinder, of an oil-ram in said cylinder, a spring to give a quick oil-forcing stroke to said ram,means for retracting said ram to make its suction-stroke, and adjustable means for limiting the movement of the ram and' varying the amount of oil delivered by it.

-5. In a power-oiler, the combination with a ram-cylinder, of an oil-forcing ram in said cylinder, and an adjustable stop to limit the movement of the ram and vary the amount of oil delivered by it.

6. 1n a power-oiler, the combination with a Series of ram-cylinders, of ram-pistons in said cylinders, springs for giving a quick oil-forcing stroke to said pistons, power --operated means to retract said rams tov make their suction-stroke, and outletvalve casings in said cylinders; said valve-casings being adjustable to afford limiting-stops for the ram-pistons in 'making their oil-forcing strokes and so vary the amount of oil 'delivered by each ram.

In testimony whereofl We ax our signatures in presence of two witnesses.

THOMAS LEGGETT STURTEVANT. THOMAS JOSEPH STURPEVANT.

Witnesses: I

L. H. STURTEVANT, W. H. ELLIS. 

